第二部分 实战演练 Week Fourteen 人与自然 自然地理-【启航英语】2024版高一英语阅读天天练（六合一）

第二部分实战演练國 Week Fourteen 人与自然 自然地理 Monday ◆答案P217 ■阅读理解 成群结队地聚在一起的蝗虫 ©关键词：locusts @难度：3 @体裁：说明文 ⊙词数：340 ⊙正确率：/4 ©建议时间：8 Scientists say they have found out a Behavior in New York,said one of the most chemical produced by locusts(蝗虫)that causes exciting developments would be finding a the insects to join together in huge swarms chemical that could block the reception of 4VA. (群). She noted that there are still several unknowns On their own,locusts are mostly harmless. about the research.These include whether 4VA But in large swarms,they can be extremely is the only cause of swarm formation,and destructive.The new finding could lead to :whether other locust species respond similarly to new methods to prevent locusts from joining the chemical. swarms to destroy huge areas of crops. 1.What is the new finding of the study? A recent study published in Nature A.New methods could be used to stop identifies a pheromone believed tobe locusts. responsible for the insect's swarming behavior. B.Locusts do not cause much damage on A pheromone is a chemical item produced by an their own. animal that influences the behavior of another C.A large number of locusts can destroy the animal of the same kind. crops terribly. The pheromone,known as 4VA,was found D.Locusts swarm because of a chemical in the world's most widespread kind of locust, produced by themselves. the migratory locust.It powerfully drew locusts 2.What can we learn about the pheromone? of both sexes and all ages,the research found. A.It only exists in the migratory locust. And it was produced when as few as four to five B.It is made at least in groups of forty. locusts came together. C.It is to blame for the locust's swarming. Lead researcher Le Kang is with the D.It affects the behavior of other animals. Chinese Academy of Sciences'Institute of 3.What is Leslie's attitude toward the Zoology.He told Reuters news agency that prevention of the locust's swarming? migratory locusts are so widespread and A.Pessimistic. B.Opt